“At the heart of quantitative reasoning is a single question: Compared to what?”
– Edward Tufte
This week, we will learn some of the technical details of how to create charts to compare values to one another and to a benchmark. Most of these articles have code in them that illustrate how to create each chart type, and I encourage you to try and reproduce the examples provided in R yourself. In addition to these articles, another particularly useful site to review is the top 50 ggplots, which contains examples with ggplot code to create 50 common visualizations.
Plot types for comparing values: